package com.itheima.reggie.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.itheima.reggie.common.CustomerException;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.Employee;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.mapper.CategoryMapper;
import com.itheima.reggie.mapper.EmployeeMapper;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishService;
import com.itheima.reggie.service.EmployeeService;
import com.itheima.reggie.service.SetmealService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class CategoryServiceImpl extends ServiceImpl<CategoryMapper, Category> implements CategoryService {

    @Autowired
    private DishService dishService;
    @Autowired
    private SetmealService setmealService;

    @Override
    public void remove(Long id) {

        //查询是否有菜品关联
        LambdaQueryWrapper<Dish> queryWrapper1 = Wrappers.lambdaQuery(Dish.class).eq(Dish::getCategoryId, id);
        int count1 = dishService.count(queryWrapper1);
        if (count1 > 0) {
            throw new CustomerException("当前分类下关联了菜品，不能删除");
        }

        //查询是否有套餐关联
        LambdaQueryWrapper<Setmeal> queryWrapper2 = Wrappers.lambdaQuery(Setmeal.class).eq(Setmeal::getCategoryId, id);
        int count2 = setmealService.count(queryWrapper2);
        if (count2 > 0) {
            throw new CustomerException("当前分类下关联了套餐，不能删除");
        }

        //根据id删除
        this.removeById(id);

    }
}
